2688045991 is an odd 10-digits composite number following 2688045990
and preceding 2688045992 . In scientific notation, it is written as 2.688045991 × 10^9.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 2601334800 positive integers (up to 2688045991) that are relatively prime to 2688045991.
2688045991 has 4 divisors, whose sum is 2774757184
The reverse of 2688045991 is 1995408862
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 52
Digital Root 7
Name
two billion six hundred eighty-eight million forty-five thousand nine hundred ninety-one
Scientific notation
2.688045991 × 10^9
Engineering notation
2.688045991 × 10^9
Prime Factorization
31 × 86711161
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2688045991
Product of the distinct prime numbers
The prime factorization of 2688045991 is 31 × 86711161.
Since it has a total of 2 prime factors.
8 , 7 , 92 , 93 , 142 , 919 , 7101 , 9406 , 28524 , 2711 , 193011 , 818727 , 3976600 , 3737129 , 2387104 , 15379822 , 541532468 , 120034658 , 6418917225 , 9545858288
n×2
5376091982
n×3
8064137973
n×4
10752183964
n×5
13440229955
n÷2
1344022995.5
n÷3
896015330.33333
n÷3
672011497.75
n÷5
537609198.2
n2
7225591249731172081
n3
1.9422721591445E+28
n4
5.2209168908192E+37
n5
1.4034064717711E+47
2 √n
51846.369120701
3 √n
1390.4185877676
4 √n
227.69797785817
5 √n
76.893094484748
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2688045990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2688045991 can be divided by 4 positive divisors.
The sum of these divisors (counting 2688045991) is 1, the average is 0.25.
Base
System
Value
2
Binary
10100000001110000101001110100111
3
Ternary
20221100000212212221
4
Quaternary
2200032011032213
5
Quinary
21001114432431
6
Senary
1122422053211
8
Octal
24016051647
10
Decimal
2688045991
12
Duodecimal
63027a207
16
Hexadecimal
a03853a7
20
Vigesimal
22005ejb
36
Base36
18ge5k7
md5
e6c0dcc30aacbbe7b4108f431512a03a
sha1
3d698c9b57fb0d82d461482def2dc8717d515a42
sha256
509571eb3bd735ec643b368a7d4302a5d9067a4952fc3f9d5e0f16c17ac63a04
sha512
1126fbb85a1720fa2e2a84c5aa5ea7e8c47219b8aafbd799522eb8c61c5967cace409878cb9c79a6dbc6cd02ba2f62272c743ac210328d9b8825ccef5ea56e1d
ripemd-160
4410c39efd0f4cd99d6bf42ceb34a589e6be2e66
Diameter
5376091982
Circumference
16889491075.674
Area
2.2699864387998E+19
Volume
8.1357705952536E+28
Surface area
9.0799457551993E+19
Circumference
16889491075.674
Perimeter
10752183964
Area
7225591249731172081
Diagonal
3801471096.7548
Surface area
4.3353547498387E+19
Volume
1.9422721591445E+28
Space diagonal
4655832229.4938
Perimeter
8064137973
Area
3.1287727898149E+18
Altitude
2327916114.7469
Surface area
3.1287727898149E+18
Volume
2.2889896910681E+27
Height
1267157032.2516